Even when he was a child, Keith Urban knew that his future was in music. While he went to school during the week, his weekends were packed with performances for the band he was a part of.

But during the week, Urban missed out on being able to perform with the rest of the band since he was at school. His passion for music and his desire to be more involved in his band led to him dropping out of school when he was only 15.

In a new interview with CMT, Urban reveals the surprising reason why he decided to drop out of school at such a young age. Besides being able to play more with his band, Urban said that his schoolwork wasn't all that challenging to him.

"For me, I was in public school and the curriculum was super basic," he said.

Knowing that he wanted to devote his life to music, Urban approached his mother and made his case to be able to drop out of school:

"I said to my mom, 'If I wasn't in school, I could be playing five, six nights a week, earning really good money playing four hours a night, getting amazing experience. Obviously, this is what I'm going to be doing my whole life. I've been doing this since I was 7. I'm 15 now. I'd really like to quit school.'"

Urban's parents were fully supportive of his decision, and it clearly paid off.

Looking back now, Urban fully believes that he made the right choice. But even though school wasn't his thing, he still recognizes the important role it plays in the lives of his two young daughters, Sunday and Faith.

Urban went all the way from being a high school dropout playing with a band in Australia, to being one of the world's biggest country music stars. Tune in below to check out his single "Blue Ain't Your Color," which proves exactly why Urban was destined for stardom.